Calcite and Zincite Physical Properties

Calcite

Zincite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.735.50-5.90

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on [10 1 1] three directions with angle of 74° 55

On {10 1 0}, perfect; parting on {000 1 }

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Calcite and Zincite Chemical Formula

While comparing Calcite and Zincite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Calcite and Zincite chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Calcite and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Zincite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 5.50-5.90 whereas that of Zincite is 5.50-5.90.